American I Corps Château-Thierry 4-17 July 1918 I Corps:Major General Hunter Liggett 1st Division: 1st Brigade 16th Infantry Regiment (1,636) 18th Infantry Regiment (1,800) 2nd Machine Gun Battalion (507) 2nd Brigade 26th Infantry Regiment (1631) 28th Infantry Regiment (1559) 3rd Machine Gun Battalion (382) 1st Field Artillery Brigade 5th Field Artillery (155mm)(1,714) 6th Field Artillery (75mm)(1,311) 7th Field Artillery (75mm)(1,435) 1st Trench Mortar Battery 1st Engineers (1,293) 1st Machine Gun Battalion (342) 2nd Field Signal Battalion 1st Train Headquarters & Military Police 1st Ammunition Train 1st Supply Train 1st Engineer Train 1st Sanitary Train 2nd Field Hospital 3rd Field Hospital 12th Field Hospital 13th Field Hospital 2nd Division: 3rd Infantry Brigade: 9th Infantry Regiment (1,975) 23rd Infantry Regiment (2,487) 5th Machine Gun Battalion (652) 4th Marine Brigade: 5th Marine Regiment (2,334) 6th Marine Regiment (2,054) 6th Machine Gun Battalion USMC (650) 2nd Field Artillery Brigade 12th Field Artillery (75mm)(1,401) 15th Field Artillery (75mm)(1,490) 17th Field Artillery (155mm)(1,729) 2nd Trench Mortar Battery 4th Machine Gun Battalion (303) 1
2nd Engineers (1,347) 1st Field Signal Battalion 2nd Train Headquarters & Military Police 2nd Ammunition Train 2nd Supply Train 2nd Engineer Train 2nd Sanitary Train 1st Field Hospital 15th Field Hospital 16th Field Hospital 23rd Field Hospital 3rd Division: 5th Infantry Brigade 4th Infantry Regiment (2,499) 7th Infantry Regiment (2,587) 8th Machine Gun Battalion (614) 5th Infantry Brigade 30th Infantry Regiment (3,700) 38th Infantry Regiment (3,649) 9th Machine Gun Battalion (522) 3rd Field Artillery Brigade 10th Field Artillery (75mm)(1,553) 18th Field Artillery (155mm)(1,648) 76th Field Artillery (75mm)(1,487) 3rd Trench Mortar Battery 7th Machine Gun Battalion (384) 6th Engineers (1,248) 5th Field Signal Battalion 3rd Train Headquarters & Military Police 3rd Ammunition Train 3rd Supply Train 6th Engineer Train 3rd Sanitary Train 5th Field Hospital 7th Field Hospital 26th Field Hospital 27th Field Hospital 4th Division: 7th Infantry Brigade 39th Infantry Regiment (3,242) 47th Infantry Regiment (2,874) 11th Machine Gun Battalion (729) 8th Infantry Brigade 58th Infantry Regiment (2,997) 59th Infantry Regiment (2,864) 12th Machine Gun Battalion (627) 4th Field Artilery Brigade: 13th Field Artillery (155mm)(1,544) 2
16th Field Artillery (75mm)(1,271) 77th Field Artillery (75mm)(1,440) 4th Trench Mortar Battery 10th Machine Gun Battalion (377) 4th Engineers (1,584) 8th Field Signal Battalion 4th Train Headquarters & Military Police 4th Ammunition Train 4th Supply Train 4th Engineer Train 4th Sanitary Train 19th Field Hospital 21st Field Hospital 28th Field Hospital 33rd Field Hospital 26th Division: 51st Infantry Brigade: 101st Infantry Regiment (2,909) 102nd Infantry Regiment (2,231) 102nd Machine Gun Battalion (603) 51st Infantry Brigade: 103rd Infantry Regiment (2,401) 104th Infantry Regiment (2,334) 103rd Machine Gun Battalion (578) 51st Artillery Brigade 101st Field Artillery (75mm)(1,358) 102nd Field Artillery (75mm)(1,515) 103rd Field Artillery (155mm)(1,655) 101st Trench Mortar Battery 101st Machine Gun Battalion (331) 101st Engineers (1,404) 101st Field Signal Battalion 26th Train Headquarters & Military Police 26th Ammunition Train 26th Supply Train 26th Engineer Train 26th Sanitary Train 101st Field Hospital 102nd Field Hospital 103rd Field Hospital 104th Field Hospital 28th Division: 55th Infantry Brigade: 109th Infantry Regiment (3,176) 110th Infantry Regiment (2,337) 108th Machine Gun Battalion (722) 3
55th Infantry Brigade: 111th Infantry Regiment (2,163) 112th Infantry Regiment (3,205) 109th Machine Gun Battalion (680) 53rd Field Artillery Brigade: 107th Field Artillery (75mm)(1,353) 108th Field Artillery (155mm)(1,409) 109th Field Artillery (75mm)(1,320) 103rd Trench Mortar Battery 107th Machine Gun Battalion (368) 103rd Engineers (1,434) 103rd Field Signal Battalion 103rd Train Headquarters & Military Police 103rd Ammunition Train 103rd Supply Train 103rd Engineer Train 103rd Sanitary Train 109th Field Hospital 110th Field Hospital 111th Field Hospital 112th Field Hospital French 167th Division: Organization unknown Corps Troops: Avaition Service: Corps Observation Group: Headquarters 1st Aero Squadron 12th Aero Squadron 88th Aero Squadron Flgiht B, 648th Aero Squadron Photo Section 1 183rd Aero Squadron 1st Pursuit Group: Headquarters 27th Aero Squadron 94th Aero Squadron 95th Aero Squadron 147th Aero Squadron Fogiht C, 648th Aero Squadron Aero Squadron Balloon Wing I Corps Balloon Wing Co. A 1st Balloon Company 2nd Balloon Company Artilery HQ 66th Field Artillery Brigade HQ, 1st & 3rd Battalions, 146th Field Artillery (155mm) 1st Bn, Trench Artillery, Coastal Artillery Corps 1st anti-aircraft Battalion (75mm) HQ Corps ARtillery 4
I Corps ARtillery Park 1st & 2nd Bn, (French) 103rd Artillery Regiment (105mm) 1st Bn, (French) 334th ARtillery Regiment (155mm) 1st & 3rd Bn, (French) 333rd Artillery Regiment (155mm) French Flash Ranging Section 83 Engineers: Cos B & D, 30th Engineers (later 1st Gas Regt units) Det/40th Engineers (Camouflage unit) Sound Ranging Section 2 (Det/B Co., 29th Engineers) Infantry: I Corps Replacement Battlaion 161st (French) Territorial Regiment (2 bns) Medical Corps: 1st Mobile Veterinary Hospital 103rd Mobile Veterinary Hospital Signal Corps: 322nd Field Signal Battalion 406th Telephone Battalion Other: Corps HQ Corps HQ Troop Corps Remount Depot American Battle Monuments Commission, 1st Division, Summary of Operations in the World War, 2nd Division, Summary of Operations in the World War, 3rd Division, Summary of Operations in the World War, 4th Division, Summary of Operations in the World War, 5th Division, Summary of Operations in the World War, 7th Division, Summary of Operations in the World War, 26th Division, Summary of Operations in the World War, 27th Division, Summary of Operations in the World War, 28th Division, Summary of Operations in the World War, Order of Battle of the United States Land Forces in the World War, American Expecitionary Forces, Divisions, US Government Printing Office, Washington, DC., 1931 Copyright GFN 1992 5